GB/T 18683-2002 Laser surface hardening of iron and steel parts

GB/T 18683-2025 Laser surface hardening of iron and steel parts

GB/T 4342 GB/T 1031-1995 Surface roughness parameters and their values GB/T 1031-2009 Geometrical Product Specifications (GPS)—Surface texture:Profile method—Surface roughness parameters and their values GB/T 3505-2000 Geometrical product specifications (GPS)—Surface texture:Profile method—Terms, definitions and surface texture parameters GB/T 3505-2009 Geometrical Product Specifications (GPS)—Surface texture:Profile method—Terms,definitions and surface texture parameters GB/T 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 7232-1999 Terminology of metal heat treatment GB/T 7232-2012 Terminology of metal heat treatment GB/T 7232-2023 Metal heat treatment—Terminology GB/T 9790-1988 Metallic and related coatings—Vickers and Knoop microhardness tests GB/T 9790-2021 Metallic materials—Vickers and Knoop microhardness tests of metallic and other inorganic coatings GB/T 7274-1987 Methods for the measurement of direct interelectrode capacitances of electronic tubes and valves GB/T 7274-2015 Methods for the measurement of direct inter-electrode capacitances of electronic tubes and valves GB 10320-1995 Electrical safety of laser equipment and installations GB/T 10320-2011 Electrical safety of laser equipment and installatins GB 10435-1989 Hygienic standard for laser radiation in the work environment